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使用时需要确定每条命令都执行成功了
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使用时需要确定每条命令都执行成功了
Arch 分区结构
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/dev/sda1	/boot
/dev/sda6	/home
/dev/sda8	Swap
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<meta itemprop="description" content="最近测试了以下 chroot ，然后把步骤写成了下面两个脚本，方便以后使用。
使用时需要确定每条命令都执行成功了
Arch 分区结构
/dev/sda5	/
/dev/sda1	/boot
/dev/sda6	/home
/dev/sda8	Swap
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使用时需要确定每条命令都执行成功了
Arch 分区结构
/dev/sda5	/
/dev/sda1	/boot
/dev/sda6	/home
/dev/sda8	Swap
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      <h1 class="f1 athelas mt3 mb1">chroot 脚本</h1>
      
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         <strong>jouyouyun</strong>
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      <time class="f6 mv4 dib tracked" datetime="2014-07-05T21:38:21+08:00">七月 5, 2014</time>
      

      
      
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    <div class="nested-copy-line-height lh-copy serif f4 nested-links mid-gray pr4-l w-two-thirds-l"><p>最近测试了以下 <code>chroot</code> ，然后把步骤写成了下面两个脚本，方便以后使用。</p>
<p><strong>使用时需要确定每条命令都执行成功了</strong></p>
<p><code>Arch</code> 分区结构</p>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-shell" data-lang="shell"><span style="display:flex;"><span>/dev/sda5	/
</span></span><span style="display:flex;"><span>/dev/sda1	/boot
</span></span><span style="display:flex;"><span>/dev/sda6	/home
</span></span><span style="display:flex;"><span>/dev/sda8	Swap
</span></span></code></pre></div><h2 id="chroot-挂载脚本"><code>chroot</code> 挂载脚本</h2>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-shell" data-lang="shell"><span style="display:flex;"><span><span style="color:#75715e">#!/bin/bash
</span></span></span><span style="display:flex;"><span><span style="color:#75715e"></span>
</span></span><span style="display:flex;"><span>_ROOT<span style="color:#f92672">=</span>/dev/sda5
</span></span><span style="display:flex;"><span>_BOOT<span style="color:#f92672">=</span>/dev/sda1
</span></span><span style="display:flex;"><span><span style="color:#75715e">#_HOME=/dev/sda6</span>
</span></span><span style="display:flex;"><span>
</span></span><span style="display:flex;"><span><span style="color:#75715e">#创建目录结构</span>
</span></span><span style="display:flex;"><span>sudo mkdir -p /mnt/arch
</span></span><span style="display:flex;"><span>sudo mkdir -p /mnt/arch/boot
</span></span><span style="display:flex;"><span><span style="color:#75715e">#sudo mkdir -p /mnt/arch/home</span>
</span></span><span style="display:flex;"><span>
</span></span><span style="display:flex;"><span><span style="color:#75715e">#挂载分区</span>
</span></span><span style="display:flex;"><span>sudo mount $_ROOT /mnt/arch
</span></span><span style="display:flex;"><span>sudo mount $_BOOT /mnt/arch/boot
</span></span><span style="display:flex;"><span><span style="color:#75715e">#sudo mount $_HOME /mnt/arch/home</span>
</span></span><span style="display:flex;"><span>
</span></span><span style="display:flex;"><span><span style="color:#75715e">#挂载临时文件系统</span>
</span></span><span style="display:flex;"><span>cd /mnt/arch
</span></span><span style="display:flex;"><span>sudo mount -t proc proc proc/
</span></span><span style="display:flex;"><span>sudo mount -t sysfs sys sys/
</span></span><span style="display:flex;"><span>sudo mount -o bind /dev dev/
</span></span><span style="display:flex;"><span>sudo mount -t devpts pts dev/pts
</span></span><span style="display:flex;"><span>
</span></span><span style="display:flex;"><span><span style="color:#75715e">#如果你已经建立了一个网络连接并且想要在chroot环境中使用它，</span>
</span></span><span style="display:flex;"><span><span style="color:#75715e">#你可能不得不拷贝你的DNS服务器配置让你能够解析主机名</span>
</span></span><span style="display:flex;"><span>sudo  cp -L /etc/resolv.conf etc/resolv.conf
</span></span><span style="display:flex;"><span>
</span></span><span style="display:flex;"><span><span style="color:#75715e"># chroot 并指定 shell</span>
</span></span><span style="display:flex;"><span>sudo chroot /mnt/arch /usr/bin/bash
</span></span></code></pre></div><h2 id="chroot-卸载脚本"><code>chroot</code>  卸载脚本</h2>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-shell" data-lang="shell"><span style="display:flex;"><span><span style="color:#75715e">#!/bin/bash
</span></span></span><span style="display:flex;"><span><span style="color:#75715e"></span>
</span></span><span style="display:flex;"><span><span style="color:#75715e">#在退出 chroot 后执行此脚本</span>
</span></span><span style="display:flex;"><span>
</span></span><span style="display:flex;"><span><span style="color:#75715e">#卸载临时文件系统和已挂载的设备</span>
</span></span><span style="display:flex;"><span><span style="color:#75715e">#sudo umount {proc,sys,dev/pts,dev,boot,home}</span>
</span></span><span style="display:flex;"><span>sudo umount <span style="color:#f92672">{</span>proc,sys,dev/pts,dev,boot<span style="color:#f92672">}</span>
</span></span><span style="display:flex;"><span>
</span></span><span style="display:flex;"><span><span style="color:#75715e">#尝试卸载根分区</span>
</span></span><span style="display:flex;"><span>cd /
</span></span><span style="display:flex;"><span>sudo umount /mnt/arch
</span></span></code></pre></div><ul class="pa0">
  
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